you are working as a business analyst at large grocery change with over $1500$ stoes. your CEO has asked you to speak to investors at next AGM on "data governance of big data and then povide specific reasoning why the data and information released to a grocery store which might be considered big data so they understand what big data actually is$,$ then explain some opportunities and challenges$($ using $5$ V$\text{'}$s of big data $)$ this data presents to this grocery chain